CVE-2026-100241
Received Received - Intake

Exposure of Sensitive Information in MediaWiki EventBus Extension

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: wikimedia-foundation

Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation. This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
CVE-2026-100241
EUVD
EUVD-2026-89071

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wikimedia mediawiki_eventbus_extension 1.47.0-alpha

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

This vulnerability involves the exposure of sensitive information to unauthorized actors in the Wikimedia Foundation MediaWiki EventBus Extension version 1.47.0-alpha. It allows excavation of sensitive data due to improper access controls.

Impact Analysis

If you use the affected MediaWiki EventBus Extension, sensitive information could be accessed or extracted by unauthorized parties. This may lead to data breaches, privacy violations, or unauthorized modifications to your system.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other privacy regulations due to unauthorized access to sensitive data. Organizations may face legal penalties, fines, or reputational damage if such breaches occur.

Mitigation Strategies

Update Mediawiki - EventBus Extension to a version that is not affected by this vulnerability. Specifically, ensure you are not using version 1.47.0-alpha.

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